National Geographic: The Photographs (National Geographic Collectors)

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Although cellulose acetate or " safety film" had been introduced by Kodak in 1908, [34] at first it found only a few special applications as an alternative to the hazardous nitrate film, which had the advantages of being considerably tougher, slightly more transparent, and cheaper.

War Crimes Case Files from the Judge Advocate General’s Office consisting of daily transcripts of proceedings, prosecution and defence summations.Concert photography focuses on capturing candid images of both the artist or band as well as the atmosphere (including the crowd). Photographs used by W W Tomlinson in writing and illustrating his history of the North Eastern Railway, published in 1914. Railway equipment and crashed train, near Carlisle, 1934, but most of the photographs in this series show streets and amenity service vehicles in Liverpool and Manchester, 1919-1949. In 1891, Gabriel Lippmann introduced a process for making natural-color photographs based on the optical phenomenon of the interference of light waves. Because his exposures were not simultaneous, unsteady subjects exhibited color "fringes" or, if rapidly moving through the scene, appeared as brightly colored ghosts in the resulting projected or printed images.

Implementation of color photography was hindered by the limited sensitivity of early photographic materials, which were mostly sensitive to blue, only slightly sensitive to green, and virtually insensitive to red.Airship sheds, aeroplane hangers and seaplane bases, plus related buildings and equipment, 1914-1932, at stations in Bedford, Cardington, Howden, Pulham and Felixstowe, among others in Britain, and at Karachi, Pakistan. As soon as photographic materials became "fast" (sensitive) enough for taking candid or surreptitious pictures, small "detective" cameras were made, some actually disguised as a book or handbag or pocket watch (the Ticka camera) or even worn hidden behind an Ascot necktie with a tie pin that was really the lens. This image is from a collection of photographs, inherited by the National Coal Board, taken by Reverend FW Cobb, Rector of Eastwood, Nottinghamshire between 1907 and 1914 (catalogue reference COAL 13/24).